Universal response curve for nanowire superconducting single-photon detectors

被引：27

作者：

Renema, J. J. ^{[1
]}

Frucci, G. ^{[2
]}

Zhou, Z. ^{[2
]}

Mattioli, F. ^{[3
]}

Gaggero, A. ^{[3
]}

Leoni, R. ^{[3
]}

de Dood, M. J. A. ^{[1
]}

Fiore, A. ^{[2
]}

van Exter, M. P. ^{[1
]}

机构：

[1] Leiden Univ, Leiden Inst Phys, NL-2333 CA Leiden, Netherlands

[2] Eindhoven Univ Technol, COBRA Res Inst, NL-5600 MB Eindhoven, Netherlands

[3] CNR, Ist Foton & Nanotecnol, I-00156 Rome, Italy

来源：

PHYSICAL REVIEW B | 2013年 / 87卷 / 17期

关键词：

EFFICIENCY; TOMOGRAPHY; TIME;

D O I：

10.1103/PhysRevB.87.174526

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Using detector tomography, we investigate the detection mechanism in NbN-based superconducting single photon detectors (SSPDs). We demonstrate that the detection probability uniquely depends on a particular linear combination of bias current and energy, for a large variation of bias currents, input energies and detection probabilities, producing a universal detection curve. We obtain this result by studying multiphoton excitations in a nanodetector with a sparsity-based tomographic method that allows factoring out of the optical absorption. We discuss the implication of our model system for the understanding of meander-type SSPDs.

引用

页数：7

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